If he wants to put a high fence up then its his business. I personally think that 1800 acres would be enough for most free roaming whitetails. Now if he has feeders places all over his "farm" and the deer aren't alarmed by a human being presant, then I think it's just plain wrong for him to feel proud to kill that deer.

With that being said, no matter how many acres I owned I wouldn't put a high fence around my land.